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#1859 - First pass at an implementation of the full reset method. Will now start testing...

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This commit is contained in:
Chris McCarthy
2023-11-27 23:01:56 +00:00
parent ae5046b8fb
commit 58e9033a4c
26 changed files with 360 additions and 240 deletions
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195
src/primaite/simulator/network/hardware/base.py
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@@ -121,6 +121,20 @@ class NIC(SimComponent):
_LOGGER.error(msg)
raise ValueError(msg)
self.set_original_state()
def set_original_state(self):
"""Sets the original state."""
vals_to_include = {"ip_address", "subnet_mask", "mac_address", "speed", "mtu", "wake_on_lan", "enabled"}
self._original_state = self.model_dump(include=vals_to_include)
def reset_component_for_episode(self, episode: int):
"""Reset the original state of the SimComponent."""
super().reset_component_for_episode(episode)
if episode and self.pcap:
self.pcap.current_episode = episode
self.pcap.setup_logger()
def describe_state(self) -> Dict:
"""
Produce a dictionary describing the current state of this object.
@@ -308,6 +322,14 @@ class SwitchPort(SimComponent):
kwargs["mac_address"] = generate_mac_address()
super().__init__(**kwargs)
self.set_original_state()
def set_original_state(self):
"""Sets the original state."""
vals_to_include = {"port_num", "mac_address", "speed", "mtu", "enabled"}
self._original_state = self.model_dump(include=vals_to_include)
super().set_original_state()
def describe_state(self) -> Dict:
"""
Produce a dictionary describing the current state of this object.
@@ -454,6 +476,14 @@ class Link(SimComponent):
self.endpoint_b.connect_link(self)
self.endpoint_up()
self.set_original_state()
def set_original_state(self):
"""Sets the original state."""
vals_to_include = {"bandwidth", "current_load"}
self._original_state = self.model_dump(include=vals_to_include)
super().set_original_state()
def describe_state(self) -> Dict:
"""
Produce a dictionary describing the current state of this object.
@@ -536,15 +566,6 @@ class Link(SimComponent):
return True
return False
def reset_component_for_episode(self, episode: int):
"""
Link reset function.
Reset:
- returns the link current_load to 0.
"""
self.current_load = 0
def __str__(self) -> str:
return f"{self.endpoint_a}<-->{self.endpoint_b}"
@@ -584,6 +605,10 @@ class ARPCache:
)
print(table)
def clear(self):
"""Clears the arp cache."""
self.arp.clear()
def add_arp_cache_entry(self, ip_address: IPv4Address, mac_address: str, nic: NIC, override: bool = False):
"""
Add an ARP entry to the cache.
@@ -756,6 +781,10 @@ class ICMP:
self.arp: ARPCache = arp_cache
self.request_replies = {}
def clear(self):
"""Clears the ICMP request replies tracker."""
self.request_replies.clear()
def process_icmp(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False):
"""
Process an ICMP packet, including handling echo requests and replies.
@@ -972,6 +1001,55 @@ class Node(SimComponent):
self.arp.nics = self.nics
self.session_manager.software_manager = self.software_manager
self._install_system_software()
self.set_original_state()
def set_original_state(self):
"""Sets the original state."""
for software in self.software_manager.software.values():
software.set_original_state()
for nic in self.nics.values():
nic.set_original_state()
vals_to_include = {
"hostname",
"default_gateway",
"operating_state",
"revealed_to_red",
"start_up_duration",
"start_up_countdown",
"shut_down_duration",
"shut_down_countdown",
"is_resetting",
"node_scan_duration",
"node_scan_countdown",
"red_scan_countdown",
}
self._original_state = self.model_dump(include=vals_to_include)
def reset_component_for_episode(self, episode: int):
"""Reset the original state of the SimComponent."""
# Reset ARP Cache
self.arp.clear()
# Reset ICMP
self.icmp.clear()
# Reset Session Manager
self.session_manager.clear()
for software in self.software_manager.software.values():
software.reset_component_for_episode(episode)
# Reset all Nics
for nic in self.nics.values():
nic.reset_component_for_episode(episode)
if episode and self.sys_log:
self.sys_log.current_episode = episode
self.sys_log.setup_logger()
super().reset_component_for_episode(episode)
def _init_request_manager(self) -> RequestManager:
# TODO: I see that this code is really confusing and hard to read right now... I think some of these things will
@@ -1005,9 +1083,6 @@ class Node(SimComponent):
return rm
def reset_component_for_episode(self, episode: int):
self._init_request_manager()
def _install_system_software(self):
"""Install System Software - software that is usually provided with the OS."""
pass
@@ -1425,99 +1500,3 @@ class Node(SimComponent):
if isinstance(item, Service):
return item.uuid in self.services
return None
class Switch(Node):
"""A class representing a Layer 2 network switch."""
num_ports: int = 24
"The number of ports on the switch."
switch_ports: Dict[int, SwitchPort] = {}
"The SwitchPorts on the switch."
mac_address_table: Dict[str, SwitchPort] = {}
"A MAC address table mapping destination MAC addresses to corresponding SwitchPorts."
def __init__(self, **kwargs):
super().__init__(**kwargs)
if not self.switch_ports:
self.switch_ports = {i: SwitchPort() for i in range(1, self.num_ports + 1)}
for port_num, port in self.switch_ports.items():
port._connected_node = self
port.parent = self
port.port_num = port_num
def show(self):
"""Prints a table of the SwitchPorts on the Switch."""
table = PrettyTable(["Port", "MAC Address", "Speed", "Status"])
for port_num, port in self.switch_ports.items():
table.add_row([port_num, port.mac_address, port.speed, "Enabled" if port.enabled else "Disabled"])
print(table)
def describe_state(self) -> Dict:
"""
Produce a dictionary describing the current state of this object.
Please see :py:meth:`primaite.simulator.core.SimComponent.describe_state` for a more detailed explanation.
:return: Current state of this object and child objects.
:rtype: Dict
"""
return {
"uuid": self.uuid,
"num_ports": self.num_ports, # redundant?
"ports": {port_num: port.describe_state() for port_num, port in self.switch_ports.items()},
"mac_address_table": {mac: port for mac, port in self.mac_address_table.items()},
}
def _add_mac_table_entry(self, mac_address: str, switch_port: SwitchPort):
mac_table_port = self.mac_address_table.get(mac_address)
if not mac_table_port:
self.mac_address_table[mac_address] = switch_port
self.sys_log.info(f"Added MAC table entry: Port {switch_port.port_num} -> {mac_address}")
else:
if mac_table_port != switch_port:
self.mac_address_table.pop(mac_address)
self.sys_log.info(f"Removed MAC table entry: Port {mac_table_port.port_num} -> {mac_address}")
self._add_mac_table_entry(mac_address, switch_port)
def forward_frame(self, frame: Frame, incoming_port: SwitchPort):
"""
Forward a frame to the appropriate port based on the destination MAC address.
:param frame: The Frame to be forwarded.
:param incoming_port: The port number from which the frame was received.
"""
src_mac = frame.ethernet.src_mac_addr
dst_mac = frame.ethernet.dst_mac_addr
self._add_mac_table_entry(src_mac, incoming_port)
outgoing_port = self.mac_address_table.get(dst_mac)
if outgoing_port or dst_mac != "ff:ff:ff:ff:ff:ff":
outgoing_port.send_frame(frame)
else:
# If the destination MAC is not in the table, flood to all ports except incoming
for port in self.switch_ports.values():
if port != incoming_port:
port.send_frame(frame)
def disconnect_link_from_port(self, link: Link, port_number: int):
"""
Disconnect a given link from the specified port number on the switch.
:param link: The Link object to be disconnected.
:param port_number: The port number on the switch from where the link should be disconnected.
:raise NetworkError: When an invalid port number is provided or the link does not match the connection.
"""
port = self.switch_ports.get(port_number)
if port is None:
msg = f"Invalid port number {port_number} on the switch"
_LOGGER.error(msg)
raise NetworkError(msg)
if port._connected_link != link:
msg = f"The link does not match the connection at port number {port_number}"
_LOGGER.error(msg)
raise NetworkError(msg)
port.disconnect_link()